Fomine Observer
Fomine Observer is an alternative to the Windows Messenger Service (Windows NT/2000/XP). Unlike the Messenger Service it has a convenient interface. You can also run Fomine Observer on Windows 98/ME. Fomine Observer can be used with Fomine WinPopup to perform one-way messaging. ... For example, this type of communication can be used by network administrators who would like to keep their users informed (while the users could not communicate with each other).
http://www.fomine.com/products/observer1.exe - 1,021Kb - Download - Screenshot

HD Observer
HD Observer controls perfectly the contents of your hard disk. Observes the files which are placed on your computer at the time of the software installations, downloads, Internet connections... or other events! Modules of monitoring supervise the start page of your browser, as well as the... the answer is HD Observer... ... From which website a file comes, or which event generated a new file...
http://www.process-leader.com/HD_Observer_Eng.zip - 16Mb - Download - Screenshot

Almanac
Almanac gives you the capability to determine the times of rising, setting, and meridian transit for the sun, the moon, and the planets. It also enables you to calculate the beginning and ending of astronomical, nautical, and civil twilight. The results of the calculations are formatted and... For rise/set calculations, the observer has zero elevation so that the horizon is exactly 90 degrees from the local vertical. ... Lunar parallax changes the perceived altitude of the moon because the observer is not at the center of the earth.
http://home.att.net/~srschmitt/ALMNAC10.zip - 587Kb - Download - Screenshot

BitCrypt
BitCrypt is a state of the art text to image encryption allowing for storage of text within an image. It is designed for persons who wish to store or communicate information in an invisible manner. The main strength of the program is the ability to hide the information from any unauthorized... The modification of the image is so small that the effect is not perceptible to the human eye. ... While encrypting, BitCrypt modifies the individual pixel shadings of the image, and in this way incorporates the textual information.
http://www.bitcrypt.co.nz/bitcrypt/BitCrypt_Setup.zip - 571Kb - Download - Screenshot

Gravitational Lensing
Einstein's General Theory of Relativity demonstrates that a large mass can deform spacetime and bend the path of light. So, a very massive object, such as a cluster of galaxies can act as a gravitational lens. When light passes through the cluster from an object lying behind it, the light is... The characteristics of the gravitationally lensed image depend upon the alignment of the observer, the lens and the background object. ... If the alignment is perfect, the resulting image is an Einstein Ring.
http://www.kwakkelflap.com/files/gravlens.zip - 75Kb - Download - Screenshot

DICOM Detective
DICOM Detective is a DICOM protocol analysis and simulation software tool dedicated to PACS maintenance people, DICOM servicemen, programmers, consultants, radiologists or people working with DICOM networks. Using the DICOM Detective, PACS maintenance people and DICOM servicemen can analyze the... an alternative for MergeDPM, DICOM Observer and Laurel Bridge Now comes the Version 1. ... 01 with find data element function and structure report viewer support. ... DICOM Detective reads network capture file and DICOM file and display DICOM tag and value in a tree list.
http://www.dicomtool.com/Install.exe - 8Mb - Download - Screenshot

GrandTour
GRANDTOUR can simulate space as seen from the Voyager and Giotto spacecraft. In addition, GRANDTOUR can generate scenes from arbitrary points in space or the Earth, with the spacecraft visible to the observer. The planet, moons, and rings of interest (or comet, nucleus, and tail), stars, the... The program was originally developed at the Jet Propulsion Laboratory by John D. ... Callahan to assist in the analysis of science and optical navigation data. ... Program conveniently runs from any Windows/DOS.
http://www.faithreason.org/grandt41.zip - 333Kb - Download - Screenshot

libpropc++ (for C++)
Template library for properties in C++ like this: widget. color = "red"; to change widget color. In class Widget use: prop::Property color; Supports binding properties together so that the values of several properties of different objects will be automatically synchronized to hold the same value. ... This library has its own signals (that is Observer Pattern from object oriented methodology) implementation or can be co-worked with the existing signal system. ... The library has good API documentation.
http://ex-code.com/binaries/libpropc++.zip - 508Kb - Download

Remote Performance Observer
Major system capabilities: Remotely collecting data on machines' resources usage (Memory, Processor, Hard Drive, Network Adapter, etc. ), current services and protocols states on the machine (Web Service, Indexing Service, IP, TCP, UDP, ICMP, SMTP, etc. ... Visualizing data in the following ways: at the graph, as statistical report, as indicators (bar, gradient and scale). ... Sending short messages to the users of the stations in a network. ... Making screen shots of remote desktops. ... Performing remote administration tasks: running programs, locking machines, etc.
http://www.apexoft.com/rpo/rpo.zip - 3Mb - Download - Screenshot

Web Translator
Translate Web, Webpages, Websites, word, sentence and passage up to 11 languages. The supported languages are English, French, German, Spanish, Italian, Portuguese, Dutch, Russian, Chinese, Korean and Japanese. You can randomly choose the source and the destination languages and meet your... The IE Observer can be integrated into Microsoft Internet Explorer and monitor the websites you are browsing. ... Just a simple select and click on the button, you can get the specified web pages translated into your own language.
http://www.zhangduo.com/webtranslator.exe - 1Mb - Download - Screenshot